| 词汇 | stratum |
| 释义 | stratum noun[ C ] uk /ˈstrɑː.təm/ us /ˈstreɪt̬.əm/pluralstratauk /ˈstrɑː.tə/ us /ˈstreɪt̬.ə/ one of the parts or layers into which something is separated: 部分；层；阶层 The report shows that drugs have penetrated every stratum of American society.报告显示，毒品已经渗入美国社会的各个阶层。 geology specialized a layer of rock, soil, or similar material: 层;岩层;地层 The cliffs are characterized by remarkable zigzagging strata of shale and sandstone.这些悬崖的特征是它们由一层层清晰易辨的页岩、石灰岩和砂岩交错构成。 Coverings and layers a blanket of somethingidiom beeswax wrap blanket brazen casing diaphragm interstratify lagging lamella lamellar lamellate seam sheath shellac space blanket strata substratum superstratum uncover varnish stratum | American Dictionarystratum noun[ Cusually pl ] us/ˈstreɪ·t̬əm, ˈstræt̬·əm/pluralstrataus/ˈstreɪ·t̬ə, ˈstræt̬·ə/ a single layer of something: the upper strata of society earth science a single layer of the earth: Engineers could inject seawater into sandy strata beneath the city. Examples of stratumstratum Finally, event-based stratification orders rules so that lower strata do not produce events consumed by the upper strata. In order to avoid aerial predators, susceptible birds may concentrate their time foraging lower in the vegetative strata. Popular politics used to have its vertical and horizontal structures : sections, organizations, and strata. There is then a much greater likelihood that all of these strata will have some part to play in all languages. Both the strata and filaments are distant from each other by plasma regions of the same scales, but with decreased density and temperature. Adding strata improves descriptive coverage, but what penalty, if any, does this move exact in restrictiveness, typology, learning and other goals of phonological theory ? In the cases they examine, they do not find evidence that the strata required to treat opacity are independently motivated. Moreover, the evolution of the living standards of the lower strata of the population is in sharp contrast with that of the upper classes. Within each such region, it was then subdivided into rural-urban strata (>50 000 inhabitants). Let fj be the union of the highest strata down to the jth one. The 'crunch' issue for most strata, of course, is income security. In terms of occupied space, they may literally monopolise the upper sediment strata at lower tidal levels (personal observation). If extreme drying and cracking occurs, upper (usually darker) sediments drop into lower strata, resulting in a gross over turning of stratigraphy over time. Multiple levels of strata both inform and inhibit the film composer. A strong partitioning of the strata is obvious: c. 25% of the species are restricted to each of the three strata. See all examples of stratum These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Collocations withstratumstratumThese are words often used in combination with stratum. Click on a collocation to see more examples of it. different stratum They come from an entirely differentstratum of society. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 geological stratum He also trained in the observation of fossils, prehistoric remains, and geological strata. middle stratum For the middlestratum, the cumulative effect is 1.88 points, and for the top stratum it is 1.98 points. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. See all collocations with stratum |
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